Hello Mr Gamble,
I Myself have tried to make contact with people in Zetas to try clear things up, I spoke to a Liam Gunarr since I was renting his vehicle out at the time it happened, Soon as I realized what was going on, I messaged him telling him I think It would be best to return the vehicle, when I met him face to face I believe I spoke to him with the utmost respect and asked if we could get this sorted, He then asked me to give him a moment to speak to someone and that they would get back to myself or someone else to sort it out but never heard back from him. We also find it very hard to ban specific individuals when they are all masked up and sometimes up to 10 people there, We was robbed 3 times by guys in blue clothing and vehicles, This is when we attempted to make contact BEFORE we implemented the ban.